|Hands down the RuffNeck System; in-ground, fixed-height, is the most cost-effective for public, outdoor use. 20-year warranty, nice board size, very cost-effective. RuffNeck systems ship for as little as $110 depending on location. RuffNeck systems ship for as little as $110 depending on location.
For a little nicer looking system with a bit more functionality, consider the Legend and the Legend Jr.
Adjustable Height: You can't go wrong with any. Most cost-effective is the Attack System but the move up to the Force System or Titan System gets you not only larger board size options, but also the Lifetime Superior Warranty.
Portables: The Fury System is the most commonly sold system to church groups and youth groups, and any organization type where you know, more or less, who's going to play on it. It's heavy enough for aggressive adult play and more than stable enough for youth play. Lifetime Limited Warranty covers everything basketball related, including dunking, but not the SHAQ hang on the rim gorilla slam.
For aggressive play or high-level competition play, go up to the Storm System or Thunder System. They are heavier so can support a larger board (glass) and they come with a Lifetime Superior Warranty. Everything is covered.
Please contact me via this web site or give a call toll free if I can answer any questions. I assure you I can put you in the best system for your needs and no one will be more helpful as you sort through sourcing your systems.